Granted Patent
Utility
US 5,498,446 · App. 08/248,655
Method and apparatus for producing high purity and unagglomerated submicron particles
Inventors:
Richard Axelbaum, Douglas P. DuFaux
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: May 25, 1994
Inventors
Richard Axelbaum
Douglas P. DuFaux
Assignee (at issue)
Washington University
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.